Improvement in gang-plows



DAVID A. MANUEL.

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PATENT QEEICE.

DAVID A. MANUEL, OF NAPA, CALIFORNIA.

IMPROVEMENT IN GANG-FLOWS.

Specication forming part of Letters Patent No. 127,495, dated June 4, 1872.

Specification describing an Improved Plow, invented'by D. A. MANUEL, of Napa, Napa county, California.

This invention relates to that class of gangplows in which the beams work in connection with a crooked axle in front and a casterwheel at the rear. The invention consists in two or more plow-beams rigidly fastened together at their front and rear ends, and combined with a caster-wheel socket pivoted to the rear end of the beams, a shaft passing crosswise through the beams, toggle-levers connecting said shaft with the axle of the transporting wheels, arms connecting the beams with the same axle, and a rod joining said toggle-levers and said socket, all for the purpose of raising and lowering the'plows.

A is the axle aforesaid, the same entering at one end a transporting-wheel, B, and near the other nend having a crank, a, the end of which enters the other transporting-wheel B. C C are the plow-beams, which, at their front ends, curve downward to within, say, fourteen inches of the ground, and are connected by a cross-bar, c, to which the whifdetree-clevis c1 is adjnstably attached. The space between the plow-beams isof the same width as the furrow cut by the rear plow. The beam C has a bend at az, in rear of the front plowstandard d, and thence runs diagonally to a bend, y, in front oi the rear plow-standard df, whence it extends parallel with the other beam C', which is on the other side ofthe standard d, and at its hinder extremity is attached to the beam O. The beam C, at its rear end, is pivoted to the upper part of a socket, e, which receives the shank f of' a casterwheel, f. When the plows are in the earth the shank f f and socket e stand at an inclination, the wheel f bein-g thrown forward. At points a little forward of their centers the beams C C are jointed each to the outer end of a backwardlyinclined arm, h, which arms, at their other extremities, loosely inclose the axle A, and are prevented from sliding endwise on said axle by means of collars a forming part of the same, between which collars the arms h are placed. .Between each arm h and the adjacent collar a a forwardly-inclined shorter arm, i, is jointed to the axle A, to the outer extremities of which arms the outer ends of arms k1 are pivoted, said arms k1 being rigidly attached, outside the beams C C', to the extremities of a shaft, lc, which passes trans' versely through both beams C O, and has a lever, k2, extending upward from its right end, near the drivers seat l, and working in connection with a curved ratchet, c2, attached to the beam C. The left arm t' is connected, by rod m, with the socket c of the caster-wheel. Hence, by moving the lever k2 forward, the driver is enabled to raise the front ends of the plow-beams, the arms t' k1 operating as togglelevers, and, by moving the lever k2 backward, the front ends ofthe plow-beams are lowered. The arms h steady the beams during these movements, and give them also a forward motion while rising and a backward motion while descending, these endwise movements causing the caster-wheel shank f l to move toward the vertical during the lifting of the plows, and in the opposite direction during the lowering of the plows; by which action of said shank the rear ends of the plow-beams are carried up and down at the same time and to the same extent as their front ends, so that the inclination of the plows to the earth is not changed during the variations in their attitude. The drivers seat l is placed on the rear end of the tongue L, so that the plow-beams are raised and lowered without raising and lowering the driver at the same time. Two curved braces, a, fastened at their upper ends to the sides of the tongue, extend downward at each side of the same, and at their lower ends loosely inclose the axle A. At the rear end of the tongue a brace, o, extends outward from its left side, which b'race at the point o bends, extending thence forward to the left brace a, to which its lower end is fastened. A lever, 1', is rigidly attached at its lower extremity to the crank a, and works in connection with a ratchet, r', secured to the braces a o. By throwing the lever r' backward the driver is enabled to raise the axle Aby means of the cranka, and by throwing the lever forward he lowers the axle. These movements of the axle affect only the front ends of the plow-beams, which are carried up and down with the axle by means of the arms@- k1, and

consequently change the inclinations oi' the lever k2, arranged as described, for the purplows to the earth, or, in other Words, cause pose of raising and lowering the plows.

the plows to eutv deeper or shallower, as re- DAVID A. MANUEL. quired.

I claim as my invention- Witnesses:

The combination of the beams C C', caster- J. E. POND,

Wheel socket e, arms h i k1, shaft k, rod m,a-nd ISAAC M. COMES. 

